參數(shù)資料
型號(hào)： FAN8729
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 光電元器件
英文描述： Spindle+4-CH Motor Drive IC
中文描述： 4 CHANNEL CD MOTOR DRIVER, PQFP52
封裝： 14 X 14 MM, QFP-52/48
文件頁數(shù)： 14/24頁
文件大?。?/td> 487K
代理商： FAN8729
FAN8729
14
6. Calculation of Gain & Torque Current
Toque limit circuit limits the current of spindle motor.
Driver amp circuit limits the current of spindle motor by comparing the voltage detected from R
CS
and the voltage output
from torque sense map.
Output current of the motor can be limited by adjusting the R
CS
value.
Maximum output current of motor is found as follows;
VMAX within IC is fixed at 350mV.
Gm of torque sense amp is set to 0.71.
ER
ECR
VM1
Driver
Convertor
Current / Voltage
VM1
Gm
+
-
Transistors
Power
Distributor
Commutation
+
+
-
+
-
Vin
R1
+
-
Vmax
Values
Absolute
Feedback loop
Negative
H2
H3
H1
current limiting
Max. output
U
V
W
Io
VM1
Rcs
CS1(Pin11)
Io
+
Vs
-
Output
Current sense
Rcs
mV
Rcs
V
mA
Io
350
max
]
[
=
=
相關(guān)PDF資料
PDF描述
FAN8729_NL Spindle+4-CH Motor Drive IC
FAN8732BG Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732BGX Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CG Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CGX Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN8729_NL 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle+4-CH Motor Drive IC
FAN8731D 功能描述:功率驅(qū)動(dòng)器IC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
FAN8732BG 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732BGX 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
FAN8732CG 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]
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